I would like some help with dumping RO output to drain (Port#X 12V wall wort to solenoid) before it hits the DI resin. The dump would start with an ATO low trigger and would need to run for about a minute to drop the TDS down to 1 or 2. It would cut off after the timer was done.

I would also like to trigger a port to flush the RO membrane via a timer, it would trigger every hour for around 3 minutes or so.

Also is there a way to increase the ATO timeout? I have it at 600 now which seems to be the max?

I need to start tinkering again with the code, I learned all this 5 years ago and everything has been rock solid. I just want to get back into it and refine some things! Thanks

thanks! Do you think this would work? I would like low ato to trigger the solenoid on port 5 for 3 minutes, clearing the higher TDS from between the membrane and the DI cartridges. After which, turn off port five and turn on port 7 to fill the sump until the ATO deactivates. Im just not sure if I would need to nest the operations? I havent uploaded anything yet, I will be using the web wizard to do it though.